Reversing valve



Nov. 9 `1926.

lA. s|MoNET REVERSING VALVE 2 sheets-sheet 1 Filed July 24 1925 I', v3mm/doc l /zaandef ,5m-wd" Nav. 9 1926.

A. SIMONET REVERSINGk VALVE Filed July 24. 1925 2 Sheets-Sheet 2314110144' oz I diez/ande? ,J2/Mme?,

` Stimmung Patented Nov. 9, 192.

ALEXANDER'SIMONET, 0F HOMESTED, EENNSYLVANI..

My invention relates to reversing valves, that is, to valves forVreversingtheiflow of gaseous fluid through a system',

My invention is primarily adapted. for use of producer-gas inconjunction with open- Y hearth furnaces, wherein the gas is, directedthrough the lire-room (hearth) rst in one direction and thenin another,or the gas is directed alternately through a pair of heating chambers.However, my invention is not to be limited to such specific use but maybe adapted for other purposesrwherein it is y desired that the intakeand exhaustl gases may be controlled and reversed by al single valve.While the invention may be used for various purposes, l have illustratedand will describe the same as used in conjunction with a reversing blastfurnace and particularly wherein a. fuel gas is employed for the blastinstead of air only.

The object of' my invention is to provide an improved valve ofthe classmentioned wherein the blast gas vmay be directed through the systemfirst in one direction and then inanother and'wherein the exhaust gasmay be directed from either of two exhaust channels to a single flue orchimney. A yfurther object of my invention is to provide a device asmentioned so `constructed thatk the incoming fluid Ygas will be'automaticallyV shut olil during thek reversing operation. A furtherobject ofi-my invention is to provide al device as mentioned which shallvbe of comparatively simple construction and easyto operate and onewhich will not readlly get out of order. Other objects will appear hereTinafter.

With these objects in view my invention consists generally in upper andlower casing elements and a bell arranged between the same with watersealed joints between the bell and the upper and lower ,casing eleAments., conduits leading from the lower' casing element and partitionsin the bell maintaining a separation between the fuel and exhaust gasesand for directing'said gases to the desired channels. My inventionfurther consists in a device as mentioned'in combination with meansfor.raising and lowering the bell and for turning theJl same af,- terelevation. My invention further consists in a device as mentioned ofsuch constrnction as to automatically shut off the flow of fuel gas tothe bellwhen the latter is raised for turning, and reversing the iow ofgases. My invention further consists in various de.-

tails. of constructionv andu arrangements of parts, all as lwill befullyf described herein@ 1 after and., particularly! pointed '011.6' infthe Claimsstood by. reference'. t0, the accompanying drawings' forming aVPalit Of this Specification'.

and in whichr-` Fig. lis a vertical section of `the'- device 0nSubstantially, thelne. l-l QfFg- 2s Fig 2 .S a .hOl-)Qfal section onchenille 242er rig.. 1,

y Fig. 3 is a hor 3 8 of Fig. 1,

vertical section ofthe bell on zontal .SGCQOIl 011th@ lille.

Fig. 4 isa the line H of Fig. 3,V Y

Fig. 5 is a bottom plan. view o f the bell,

Fig.I 6' is a diagram illustratingthe Iarrangements and use of the valveinfconjiino-` tion with Ya reversing blast furnace, and 'i Fig. 7 is adetail section on the linef7-f-7 Griega Referring now to the drawings 1indi catesthe base or bottom elements 'of the cas ing which comprisesouter 'and innerconcenv Y i Myf invention will bemore readily under-,j

tric channels 2'and'3 respectivelyconnected y.

by threera'dial/Achannels 4, 5 and 6, forming openlngs or portsv 7, 8and 9 in the bottom of'l the device, which communicate with ducts or'conduits 10, v11 and 12,1 eading re:

spectively to a chimney 18, and to heating chambers 14 vand 15, asindicated in Figs. 2 and 6. The chambers 14 and 1 5 arev 'connectedtothe blast furnace' 16 by blast "ducts 17 and 18 and also by exhaustgas ducts 19 and 2Q. `The mouths of these ducts 1 7, 18,

19 and 20,7`where`they enterl vthe chambers n 14 and 15 arecontrolled bysuitableA dampers 21 and 22 so that the blast duct-of one chamber isopen when `the exhaust to the other is open and vice versa. e Y

The top element of the casing comprises a gas chamber formed ofinnerandute'r con centric cylindrical walls 23 and 24 `respecconnected.at their. upper ends by an annular plate .25y constituting; the ltop` ofthe chamber.' This is supported in anysuitable way, as by aframe-work'26, which is illustrated diagrammatically only i-n- Fig. 1Q27 indicates the gas inlet connected with any suitable source of supply.Between the upper and'y lower casing elements is a bell :28

comprising inner and' 7onter cylindrical Vrest within theanriular`channels 2 'and 3 of the bottom elements, which channels, to gether withthe radial channels 4, 5 and 6, are filled with water to form a gasseal. The top of the bell 28 is provided with in ner and outerconcentric channels 32 and 33 respectively, which receive the loweredges of the walls 23 and 24 of the top casing element or gas chamber.rIhese channels are filledv with water to form a seal between the gas*chamber and the bell. Arranged within the bell 28 are radially disposedvertical partitions 34, the lower edges of which terminate short of thebottom of the walls 29' y and 30, but normally extend'into the radialchannels 4, 5 and 6, dividing the bell into a blastgas compartment 35and awaste gas compartment 36. r1`hese partitions are pref-r erablydouble walled as illustrated so as to containl water for cooling thesame. rlhe top of the bell 28 is provided with a gas inlet port 37,about which is arranged a short vertically extending pipe 38. The lengthof the pipe 38 is such that its upper end will closely Contact the top25 of the gas chamber when the bell is raisedsuiliciently to permit thelower edges of the partitions 34 to pass overthe walls of the channels4, 5 and 6 for a purpose hereinafter described.

A. fixed shaft 39 is provided which constitutes a guide for the bell 28,a pair of bearings 40 being fiXedly arranged within the cylindricalelement 29 of the bell. Fixed to the upper bearing member 40 is anupwardly extending sleeve 41 upon which is formed an annular flange 42.43 indicates a sleeve arranged about the sleeve 41 and provided withracks 44, meshing with pinions 45. The sleeve 41 is rotatable within thesleeve 43, whereas the latter is prefer ably non-rotatable. The upperend of the ysleeve 43 is provided with a flange 46 between Vwhich andthe iiange 42 are ballbearings 47. t isl obvious that by turning thepinions 45, the bell 28 may be raised or lowered as desired. rlihesleeve 41 Aextends above the ange 42 and slidably mounted upon the upperend thereof is a pinion 48 meshing with a gear 49 adapted to be drivenin any suitable manner. By means of the pinion and gear 48 and 49, thebell may be rotated. The bell isCOunterweighted as shown to facilitatethe operation of the device. 25 indicates the counterweights. which maybe connectedy to the bell in any desired manner.

The operation of the device is as follows: The bell 28 normally rests ina position indicated Iin Fig. 1 with the lower edges of its walls 29 and30 resting in the bottoms of the channels 2 and 3 and the lower edges ofthe partitions 34 submerged in the water of the radial channels asillustrated.A Fluid gas under pressure is passed through 27 to the gaschamber from which it passes As illustrated in the drawings,

perature, and passes trough the duct 12, and

the Vport l9, to chamber 36 of the bell, and out through the port 7 tothe chimney duct 10. After the chamber 15 is sufficiently y heated, thebell 28 is raised by means of the mechanism above described and thenturned approximately l2()O until its walls 34 are above the channels 5and 6, and then lowered. lt will be noted that this will reverse theflow of gas 'through the heating chambers and furnace, as the blast gaswill now pass through the port 9 to the duct 12, thence through thechamber 15, where the gas is heated andI then through the blast duct 18to the furnace 16. lt is to be understood that when the bell isV shiftedthe dampers 21 and 22 are also operated to close the ducts which wereformerly open and to open those formerly closed. rllhe waste gas passesout through the duct 19 to the heating chamber 14, which it heats to ahigh temperature and then passes out through the duct 11 to the port 8into the chamber 36 of the bell and through the port 7`to the chimneyductlO. `When the bell 28 is raised the end of the pipe 38 engages thetop25 of the gas chamber and automatically cuts ofl' the flow of gas tothe bell while the latter is being turned. TWhen the chamber 14 issuciently heated, the valve is again reversed, as vare also the dampers21 and 22, and the operation repeated. f

l claim: v

1. A device of the class described comprising a base element having apluralityof ports, .and an upper gas rchamber in combinat-ion with abell arranged between said base and said gas chamber and provided withpartitions adapted to control said ports and means for shifting saidbell to effect communication between said gas chamber and one of saidports and communication between others of said ports, and means on saidbell adapted to co-operate with Va portion of said gas chamber toautomatically cut ofi thel gas when the bell is raised, substantially asdescribed.

2. A device as set forth in claim 1 in cornbinat-ion with water sealedjoints between said bell and said gas'chamber and similar joints betweensaid bell and base element, substantiallyas described.

A device of the class described comprising a base element consisting ofconcentric annular channels and three radial chan nels connecting thesame, a bell having inner and outer cylindrical walls with' their loweredges arranged in said annular channels and provided with a pair ofpartitions having the lower edges arranged in two of said radialchannels, there being liquid in said channels to form a seal, a gaschamber above said b-ell, said bell being provided with an annular waterilled channel receiving the lower end of the chamber walls, means foradmitting gas to said gas chamber, a communicating port between said gaschamber and said bell, the inner cylindrical wall oi said bell forming acentral chamber open to the atmosphereV and means in said centralchamber for raising,

lowering and turning said valve, substan tially as described.

4;. A device of the class described comprising a base element having aplurality7 of ports and an upper gas chamber in combination with a bellarranged between said base and said gas chamber and provided withpartitions adapted n to controll said ports, means for raising, shiftingand lowering said bell to effect communication between said gas chamberand one of said ports and communication between others ofY said ports,said gas ychamber having a at top, and said bell being provided with agas inlet port in its top, and a vertical pipe communicating with saidport and adapted when the bell is raised to engage thelat centricannular channels and radial chan-V nels connecting the same, a bellhavinginner and outer cylindrical walls with their lower edges varrangedin'said cylindrical channels and provided with partitions dividing thebell into chambers and having the outer ends of said partitions arrangedin certain of said radial channels, there being liquid in said channelsto form a seal, a gas chamber above said bell, said bell being providedin its top with a gas inlet port communicating with one of the chambersof said bell, a pipe surrounding said port and projecting I upwardly andmeans on said chamber for engaging and closing the upper end of saidpipewhen the bell is raised sufciently to withdraw the radial partit-ionsfrom their respective channels, substantially as described. y y

6. A device as set forth in claim 1 in combination with means forcounter-balancing the bell, substantially as described.

In testimony whereof I have signed my name tov this specification.

ALEXANDER f sIMoNET.

